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| Miami Terrace Reef ： ウィキペディア英語版 |
Miami Terrace Reef
The Miami Terrace Reef ()〔(【引用サイトリンク】 work=Department of Defense, Defense Mapping Agency )〕 is a coral reef off the coast of Florida stretching from South Miami to Boca Raton, in the Atlantic Ocean. It lies in depths of 650 to 2,000 feet (200 to 600 meters) on top of a geological formation known as the Miami Terrace, a 65 km long shelf about 15 miles off shore. Much of the platform remains unexplored, and new portions of the reef are still being discovered. University of Miami researchers discovered new reef sites there in December 2005.
The terrace consists of long and well-defined〔(【引用サイトリンク】 work=@Sea Florida Frontiers )〕 rocky ridges made of limestone that provide a habitat for many types of corals, sponges, and fish.〔(【引用サイトリンク】 work=NOAA Ocean Explorer )〕 Fish species observed there include wreckfish, barrelfish, and bright red alphonsinos.〔(【引用サイトリンク】 work=NOAA Ocean Explorer )〕 Recently observed intertebrate species have included Lophelia pertusa coral, stylasterine hydrocoral (Stylasteridae), bamboo coral (Isididae), and various sponges and octocorals. Motile invertebrates such as crabs and urchins have also been observed there, including Asteroporpa sp. ophiuroids, Stylocidaris sp. urchins, Mollusca, Actiniaria, and Decapoda crustaceans (Chaceon fenneri and Galatheidae).
Corals on the terrace are vulnerable to the effects of bottom trawling and dredging,〔(【引用サイトリンク】 work=National Academies Press, National Research Council )〕 and the Miami Terrace has been proposed for protection from these activities.
==History==
Studies done primarily by the University of Miami (UM) in the 1970s surveyed the Miami Terrace geological formation. Biologists also retrieved samples of reef fauna.〔 John Reed, with Harbor Branch Oceanographic Institution, observed dense aggregations of 50-100 wreckfish there in May 2004 during a submersible dive.〔 A UM team with the National Oceanic and Atmospheric Administrations Ocean Exploration program discovered〔(【引用サイトリンク】 work=NOAA Ocean Explorer )〕 new reef sites there in December 2005 using an autonomous underwater vehicle.〔(【引用サイトリンク】 work=NOAA Ocean Explorer )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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